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37 87 37 88 37 89 37 90 37 91 37 92 37 93 37 94 37 95 37 96 37 97 1889 1888 1887 1886 1885 1884 1883 1882 1881 1880

= Free Coordinate    = Occupied(Single Region)     = Occupied (Var Region)     = Center of the grid